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Oracle 1Z0-171 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Using SELECT Statements | - Execute a basic SELECT statement - Use the FETCH clause to limit rows returned - Use the ORDER BY clause to sort rows - Use the WHERE clause to restrict rows |
| Topic 2: Using DML Statements | - Control transactions - Insert rows into a table - Update rows in a table - Delete rows from a table - Use the MERGE statement |
| Topic 3: Using SQL Functions | - Use character, number, and date functions in SELECT statements - Use conversion functions |
| Topic 4: Using Subqueries | - Use multiple-row subqueries - Use correlated subqueries - Use single-row subqueries |
| Topic 5: Using DDL Statements | - Create and manage constraints - Create and manage sequences - Create and manage indexes - Create and manage tables - Create and manage views |
| Topic 6: Controlling User Access | - Create and manage roles - Differentiate system privileges from object privileges - Grant and revoke privileges |
| Topic 7: Using Joins | - Use cross joins - Use equijoins and non-equijoins - Use outer joins (LEFT, RIGHT, FULL) - Use self-joins |
| Topic 8: Using Set Operators | - Use UNION, UNION ALL, INTERSECT, and MINUS operators |
Oracle Database 23ai SQL Associate Sample Questions:
1. What is the purpose of a correlated subquery?
A) A subquery that references columns from the outer query
B) A subquery that can be used only with aggregate functions
C) A subquery that depends on the result of another subquery
D) A subquery that combines data from multiple tables
2. How are NULL values treated in relational databases?
A) NULL values are treated as empty strings.
B) NULL values are not allowed in relational databases.
C) NULL values are treated as zero.
D) NULL values represent missing or unknown data.
3. Which of the following data dictionary views provides information about constraints on tables?
A) DBA_CONSTRAINTS
B) USER_CONSTRAINTS
C) ALL_CONSTRAINTS
D) All of the above
4. Which command revokes a user's privilege to update a table?
A) DENY UPDATE ON table_name FROM user_name;
B) REMOVE UPDATE ON table_name FROM user_name;
C) REVOKE UPDATE ON table_name FROM user_name;
D) DELETE UPDATE ON table_name FROM user_name;
5. Which clause can be used with SET operators to sort the final result set?
A) HAVING
B) ORDER BY
C) GROUP BY
D) WHERE
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: D | Question # 4 Answer: C | Question # 5 Answer: B |
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